Chapter 2 Biology Te Word Scramble
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Question | Answer |
Atom | The study of Chemistry begins with the basic unit of matter. |
Nucleus | Strong forces bind protons and neutrons together |
Electron | A negatively charged particle |
Proton | A positively charged particle |
Neutron | A neutral charged particle |
Element | A pure substance that consists entirely of one type of atom |
Compound | A substance formed by the chemical combination of 2 or more elements in definite proportions |
Molecule | The smallest unit of compounds |
Covalent Bonding | Forms when electrons are shared between atoms |
Ionic Bond | Formed when one or more electrons are transfered from one atom to another |
Macromolecule | Made from thousands or even hundreds of thousands of smaller molecules |
Monomer | The smaller units |
Polymer | Monomers join together to form polymers |
Lipids | Used to store energy |
Carbohydrates | Main source of energy |
Protein | Macromolecules that contain H,C,N, and O |
Amino Acids | Proteins are polymers of molecules |
Nucleic Acids | Macromolecules containing H,O,N,C, and Ph |
Chemical Reaction | A process that changes one set of chemicals into another |
Enzyme | Speed up chemical reactions that take place in cells |
Reactants | Elements or compounds that enter into a chemical reaction |
Products | The elements or compounds produced by a chemical reaction |
Subtrate | The reactants of enzyme catalyzed reactions |
Activation Energy | Energy that is needed to get a reaction started |
Why is a Carbon Special? | Carbon atoms have 4 valence electrons. Carbon can bond with many elements. |
Compare and Contrast the functions of lipids and Carbohdrates | Both used to store energy, some lipids are important parts of biological membranes. |
Explain how a catalyst affects a reaction | It is a substance that speeds up the reaction |
Why do living things depend on enzymes? | Because it lowers activation energy. |
What do Chemical bonds have to do with a Chemical Reaction? | Because a chemcial reaction changes a set of chemicals |
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